The pre-commissioning inspection of the Changsha integrated precast pump station is a vital helper in the urban drainage system. Its primary function is to provide power for rainwater and accumulated water on city streets and roads during pipeline transportation, transporting them from the municipal network to discharge sites or treatment facilities.
The sewage lifting stations are installed underground and are generally categorized into intermediate stations and terminal stations. Typically, rainwater and sewage flow through pipes relying on gravity. However, due to terrain or silt buildup, the flow may lack sufficient momentum. Intermediate stations are set up to provide adequate propulsion for the water in the pipes, enhancing the discharge speed and ensuring smooth water flow. Terminal stations, on the other hand, are designed to allow rainwater and sewage to smoothly reach their destination, often requiring higher power.
Routine inspection prior to the integration precast pump station debugging:
Installation and setup correctness, and should be checked to ensure compliance with design requirements.
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2. Pipeline segments that may create a vacuum should be equipped with vacuum break valves that have sufficient filtration area, and their operation should be accurate and reliable.
The valves on the inlet and outlet pipe routes should be fully open, and all other equipment should be in normal working condition. The power supply capacity, voltage level, and electrical protection devices should meet the requirements of the installed mechanical and electrical equipment. The pump station debugging should be carried out in accordance with relevant construction acceptance specifications.
Pump station debugging requirements:
1.Integrated Pre-fabricated Pump StationEnsure proper installation and setup, and verify that they meet design requirements.
The rotor and all moving parts should operate normally without any abnormal sounds or friction.
3. The auxiliary system is operating normally; the pipeline connections should be secure and free of leaks.
4. The safety protection of pumps, electrical control devices, and all parts of the instruments should be sensitive, accurate, and reliable. When the wastewater pump station adopts rapid gate cutoff and has an emergency gate on the downstream side, the automatic control coordination time should be adjusted to meet the design requirements for unit protection, and both on-site operation and remote control should be reliable.
